package com.hmall.trade.listener;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.hmall.api.client.item.ItemClient;
import com.hmall.api.client.pay.PayClient;
import com.hmall.api.dto.ItemDTO;
import com.hmall.api.dto.OrderDetailDTO;
import com.hmall.api.dto.PayOrderDTO;
import com.hmall.common.constants.MqConstants;
import com.hmall.trade.domain.po.Order;
import com.hmall.trade.domain.po.OrderDetail;
import com.hmall.trade.service.IOrderDetailService;
import com.hmall.trade.service.IOrderService;
import lombok.RequiredArgsConstructor;
import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @author wangyoucheng
 * @date 2025/9/6
 * @description TOD0
 */
@Component
@RequiredArgsConstructor
public class OrderDelayMessageListener {
    private final IOrderService orderService;
    private final IOrderDetailService orderDetailService;

    @Autowired
    private PayClient payClient;

    @Autowired
    private ItemClient itemClient;


    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(name = MqConstants.DELAY_ORDER_QUEUE_NAME),
            exchange = @Exchange(name = MqConstants.DELAY_EXCHANGE_NAME, delayed= "true"),
            key = MqConstants.DELAY_ORDER_KEY
    ))
    public void listenOrderDelayMessage(Long orderId) {
        // 1.查询订单
        Order order = orderService.getById(orderId);
        // 2.检测订单状态，判断是否0未支付
        if (order == null || order.getStatus() != 1) {
            // 订单不存在或者不是“未支付”状态 已经处理过的，就直接结束（幂等性校验）
            return;
        }
        // 3.todo 订单状态是未支付，需要查询支付单状态（pay服务里pay_order表的支付单状态）
        PayOrderDTO payOrderDTO = payClient.queryPayOrderByBizOrderNo(orderId);
        Integer status = payOrderDTO.getStatus();
        if (status == 3) {
            // 4.判断支付单是否已支付
            //   如果已支付，标记订单状态为“已支付待发货”
            orderService.markOrderPaySuccess(orderId);
        } else {
            //   否则取消订单，回滚库存(查询订单里都有哪些商品，每个商品买了几个)
            LambdaUpdateWrapper<Order> wrapper = Wrappers.<Order>lambdaUpdate().set(Order::getStatus, 5).eq(Order::getId, orderId);
            orderService.update(wrapper);
            LambdaQueryWrapper<OrderDetail> wrapper1 = Wrappers.<OrderDetail>lambdaQuery().eq(OrderDetail::getOrderId, orderId);
            List<OrderDetail> list = orderDetailService.list(wrapper1);
            for (OrderDetail orderDetail : list) {
                orderDetail.setNum(-orderDetail.getNum());
            }
            List<OrderDetailDTO> list1 = new ArrayList<>();
            BeanUtils.copyProperties(list,list1);
            itemClient.deductStock(list1);
        }

    }
}
